I have a Constant LED Alarm Clock ( http://www.homebase.co.uk/webapp/wcs/stores/servlet/ProductDisplay?storeId=20001&productId=1500538753&langId=-1&cmpid=AFPFD&_$ja=tsid:18771|cc:|prd:2550431|cat:Home+Enhancements%3EClocks ), quite old.. still works fine and everything.. I lost the user manual...